Vanguard VMH3000TPA Owner'S Operation And Installation Manual Download Page 15

15

107098

OWNER’S MANUAL

For more information, visit www.desatech.com

OPERATING
HEATER

Continued

THERMOSTAT

CONTROL

OPERATION

The thermostatic control used on this
heater differs from standard thermostats.
Standard thermostats simply turn on and
off the burner. The thermostat used on
this heater senses the room temperature.
The thermostat adjusts the amount of gas
flow to the burner. This increases or de-
creases the burner flame height. At times
the room may exceed the set temperature.
If so, the burner will shut off. The burner
will cycle back on when room temperature
drops below the set temperature.

The control knob can be set to any heat
level between HI and LO.

Note:

 The thermostat sensing bulb mea-

sures the temperature of air near the
heater cabinet. This may not always agree
with room temperature (depending on
housing construction, installation loca-
tion, room size, open air temperatures,
etc.). Frequent use of your heater will let
you determine your own comfort levels.

MANUAL LIGHTING

PROCEDURE

1.

Remove front panel (see Figure 2,
page 3).

2.

Follow steps 1 through 5 under Light-
ing Instructions,
 page 14.

3.

With control knob pressed in, strike
match. Hold match to pilot until pi-
lot lights.

4.

Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Now
follow step 8 under Lighting Instruc-
tions, 
page 14.

5.

Replace front panel.

Figure 24 - Correct Pilot Flame Pattern

Thermocouple

Thermocouple

INSPECTING
BURNER

Figure 25 - Incorrect Pilot Flame Pattern

Pilot Burner

Pilot Burner

Check pilot flame pattern and burner flame
pattern often.

PILOT FLAME PATTERN

Figure 24 shows a correct pilot flame pattern.
Figure 25 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not touch-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown
in Figure 25

• turn heater off (see To Turn Off Gas to

Appliance, page 14)

• see Troubleshooting, pages 16 through 18

BURNER FLAME PATTERN

Figure 26 shows a correct burner flame
pattern. Figure 27 shows an incorrect burner
flame pattern. The incorrect burner flame
pattern shows yellow tipping of the flame. It
also shows the flame higher than one inch
above the log.

Note:

 When using the heater the first time,

the flame will be yellow for approximately
one hour until the log cures.

NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.

 WARNING: If yellow tipping

occurs, your heater could pro-
duce increased levels of carbon
monoxide. If burner flame pat-
tern shows yellow tipping, follow
instructions, bottom of this page.

If burner flame pattern is incorrect, as shown
in Figure 27

• turn heater off (see To Turn Off Gas to

Appliance, page 14)

• see Troubleshooting, pages 16 through 18

Figure 27 - Incorrect Burner Flame Pattern

Figure 26 - Correct Burner Flame Pattern

Top of Flame Even
With Top of Log

Yellow Tipping

Summary of Contents for VMH3000TPA

Page 1: ...rmedbyaquali fied installer service agency or the gas supplier WARNING Improper installation adjustment alteration service or maintenance can cause injury or property damage Refer to this manualforcor...

Page 2: ...lower insert heat exchanger insert or other accessory not approvedforusewiththisheater 4 This heater shall not be installed in a bedroom or bathroom 5 This heater needs fresh outside air ven tilation...

Page 3: ...k go dk irln fgp d f AS DF KIG LF JI als kd idk oe mk go dk irln fgp d f AS DF KIG LF JI als kd idk oe mk go dk irln fgp d f AS DF KIG LF JI als kd idk oe mk go dk irln fgp d f AS DF KIG LF JI als kd...

Page 4: ...ing to mount heater to wall Log Retaining Brackets Figure 3 Assembling Heater Truss Head Screw Nut Front Panel Figure 4 Attaching Brass Front Trim to Front Panel Brass Front Trim Top Brass Trim Slot M...

Page 5: ...ms are communicating only iftherearedoorlesspassagewaysorventila tion grills between them WARNING This heater shall notbeinstalledinaconfinedspace or unusually tight construction unless provisions are...

Page 6: ...nclude direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used...

Page 7: ...12 12 Ventilation Grills into Adjoining Room Option 1 Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic WARNING Rework work sheet adding the spa...

Page 8: ...If you have a central heating system you may run system scirculatingblowerwhile using heater This will help circu late the heat throughout the house In the event of a power outage you can use this hea...

Page 9: ...rs Attach mounting bracket to wall in one of two ways 1 Attaching to wall stud 2 Attaching to wall anchor Attaching To Wall Stud This method pro vides the strongest hold Insert mounting screws through...

Page 10: ...wall stud drill holes at marked lo cations using 9 64 drill bit 5 Replace heater onto mounting bracket 6 Place spacers between bottom mount ingholesandwallanchorordrilledhole 7 Hold spacer in place wi...

Page 11: ...rth base in desired location Mark holes for drilling See Figure 16 Remove hearth base 2 For carpeted floor make a small cut with a sharp knife at marked locations before drilling If securing to a wood...

Page 12: ...gulator 11 W C to 14 W C Pressure The installer must supply an external regu lator The external regulator will reduce incoming gas pressure You must reduce incominggaspressuretobetween11and14 inches o...

Page 13: ...toff valve see Figure 21 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once Open Closed Equipment Shutoff Valve Figure 21 Checking Gas Joints...

Page 14: ...e ap pliance if service is to be performed Shutting Off Burner Only pilot stays lit Turn control knob clockwise to the PILOT position A This appliance has a pilot which must be lighted by hand When li...

Page 15: ...24 Correct Pilot Flame Pattern Thermocouple Thermocouple INSPECTING BURNER Figure 25 Incorrect Pilot Flame Pattern Pilot Burner Pilot Burner Check pilot flame pattern and burner flame pattern often PI...

Page 16: ...uple 8 Replace control valve POSSIBLE CAUSE 1 Ignitor electrode positioned wrong 2 Ignitor electrode broken 3 Ignitor electrode not connected to igni tor cable 4 Ignitor cable pinched or wet 5 Piezo i...

Page 17: ...or replace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS pilot is lit...

Page 18: ...dor during combustion POSSIBLE CAUSE 1 Metal expanding while heating or con tracting while cooling 1 Heater burning vapors from paint hair spray glues etc see IMPORTANT statement above 2 Gas leak SeeW...

Page 19: ...injector holder for dust and dirt see Figure 28 3 Blow air through the ports slots and holes in the burner Figure 28 Injector Holder On Outlet Burner Tube 4 Check the injector holder located at the en...

Page 20: ...PROPANE LP GAS RESIDENTIAL HEATERS For more information visit www desatech com 1 2 9 10 10 12 13 14 15 17 19 20 23 24 25 6 26 6 7 1 1 3 1 28 5 16 18 4 22 1 1 1 21 11 8 27 ILLUSTRATED PARTS BREAKDOWN V...

Page 21: ...or Cable 1 11 098249 01 Nut M5 2 12 107486 01 ODS Pilot Assembly 1 13 103447 01 Burner 1 14 099387 03 3 16 Pilot Tubing 1 15 103845 10 Injector 1 16 NJF 8C Nut Hex 1 17 099415 06 Pressure Regulator 1...

Page 22: ...Piezo Pressure Regulator Setting 8 W C Inlet Gas Pressure in of water Maximum 14 Minimum 11 Dimensions Inches H x W x D Heater 23 75 x 25 9 x 8 5 Carton 25 8 x 28 7 x 10 1 Weight pounds Heater 29 Ship...

Page 23: ...Shown Your vent free gas appliance requires regu lar cleaning and maintenance to prevent performance problems This kit gives you the tools and instructions to make it easy to clean all critical areas...

Page 24: ...Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF TH...

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